| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] which [modal v] [vb infin] | 350 |
|
| 2 | [vb pp] which [modal v] [vb infin] | 173 |
|
| 3 | established [pron] [modal v] [vb infin] | 18 |
|
| 4 | established which [modal v] [verb] | 12 |
|
| 5 | establish which [modal v] [vb infin] | 12 |
|
